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Clinical Trial of Transnasal Humidified Rapid-Insufflation Ventilatory Exchange (THRIVE) Oxygen in Women having Planned Caesarean Delivery. Cohort study investigating the efficacy of THRIVE pre-oxygenation using pre-determined number of vital capacity breaths and comparing the efficacy to face mask pre-oxygenation. Aimed to recruit ASA 1-2 term pregnant women having elective caesarean section.
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| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| THRIVE pre-oxygenation | Device | Clinical Trial of Transnasal Humidified Rapid-Insufflation Ventilatory Exchange (THRIVE) Oxygen in Women having Planned Caesarean Delivery |
| Measure | Description | Time Frame |
|---|---|---|
| Number of vital capacity breaths required using THRIVE to pre-oxygenate 90% of parturients to an end tidal oxygen concentration of ≥90% (EN90). End tidal oxygen concentration >= 0.9 | measure end tidal oxygen concentration through breathing system attached to anaesthetic machine | 8 months study period |
| Measure | Description | Time Frame |
|---|---|---|
| EN90 using THRIVE with mouth open versus mouth closed | to measure any difference in end tidal oxygen concentration after using THRIVE mouth closed versus THRIVE mouth open | 8 months study period |
| comfort score of THRIVE |
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Inclusion Criteria:
Exclusion Criteria:
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term pregnant women undergoing elective Caesarean section
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| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| UCLH | London | NW1 2BU | United Kingdom |
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using 4-point Likert scale (1 being very uncomfortable- 4 comfortable)
| 8 months study period |
| changes in fetal wellbeing during pre-oxygenation time | using fetal cardiotocography | 8 months study period |